| Author |
Message |
yathern
Fusion Laser
Joined: 20 Aug 2006
Posts: 350
Location: Here, there.... Everywhere.
|
 Posted: 7/17/08, 11:07 AM Post subject: nightvisio |
 |
|
| If I buy an infrared laser,and use the "image enchancement" method of nightvision, will I be able to see the beam? What wavelengths can nightvision see? |
|
| Back to top |
|
 |
CrazyKenny
Elite Laser
Joined: 03 May 2007
Posts: 146
Picture(s): 3
Movie(s): 1
Location: Germany
|
| Posted: 7/17/08, 1:44 PM Post subject: |
|
|
I think they use near-IR, such as 808 nm
maybe you ill be able to see the dot as a bright white dot but I think you will not see the laser beam
_________________
green 3~8mw ebay laser
green 50mw ebay laser (mounted on telescope)
homemade DVD-Burner Laser (~120mW, divergence: 0.05 !)
RGY laserscanner (130mW red 60mW green) 
300mW green Laser module from ebay 
money spent on lasers: ~1800 $ (some are broken...) |
|
| Back to top |
|
|
yathern
Fusion Laser
Joined: 20 Aug 2006
Posts: 350
Location: Here, there.... Everywhere.
|
| Posted: 7/17/08, 3:08 PM Post subject: |
|
|
| Ok, but if I buy an 808nm laser it might work? or if I use a high-infrared laser, lets say...1064nm, would a thermal night vision be able to see it? |
|
| Back to top |
|
|
Bluefan
Fusion Laser
Joined: 20 Apr 2008
Posts: 299
Movie(s): 1
|
| Posted: 7/18/08, 8:06 AM Post subject: |
|
|
| yathern wrote: |
| Ok, but if I buy an 808nm laser it might work? or if I use a high-infrared laser, lets say...1064nm, would a thermal night vision be able to see it? |
The usual night vision is either amplifying the residual light or near infrared, 1064nm may be just barely visible, 808nm should be fine.
Thermal nightvision is great but VERY expensive stuff, and works in the deep infrared. Your CO2 laser will probably be nicely visible, and that's at 10,6um. That is 10600nm. so the 1064nm is a bit far away, altough you might have a slight chance it also picks up shorter wavelengths (thermal vision for higher temperatures, around 250C and above). |
|
| Back to top |
|
|
yathern
Fusion Laser
Joined: 20 Aug 2006
Posts: 350
Location: Here, there.... Everywhere.
|
| Posted: 7/18/08, 4:33 PM Post subject: |
|
|
| OK- thanks for the info- I was thinking of getting an infrared, because they are so powerfull (and a bit unstable...) but I new I couldn't see the beam, and would most likely blind myself... So thats where nightvision comes in. But the combined cost, of the goggles and the laser is just about equall to the cost of a green laser of the same proportions. |
|
| Back to top |
|
|
incinerator
Elite Laser
Joined: 05 Aug 2007
Posts: 207
Location: canada
|
| Posted: 7/18/08, 7:46 PM Post subject: |
|
|
| yathern wrote: |
| OK- thanks for the info- I was thinking of getting an infrared, because they are so powerfull (and a bit unstable...) but I new I couldn't see the beam, and would most likely blind myself... So thats where nightvision comes in. But the combined cost, of the goggles and the laser is just about equall to the cost of a green laser of the same proportions. |
In COD4, when it is pitch black, and you put on your night vision, you can see your laser sight  ... But it is only a video game  |
|
| Back to top |
|
|
incinerator
Elite Laser
Joined: 05 Aug 2007
Posts: 207
Location: canada
|
| Posted: 7/18/08, 7:49 PM Post subject: |
|
|
| yathern wrote: |
| OK- thanks for the info- I was thinking of getting an infrared, because they are so powerfull (and a bit unstable...) but I new I couldn't see the beam, and would most likely blind myself... So thats where nightvision comes in. But the combined cost, of the goggles and the laser is just about equall to the cost of a green laser of the same proportions. |
In COD4, when it is pitch black, and you put on your night vision, you can see your laser sight ... But it is only a video game
_________________
resistance is futile (if <1 ohm)
 |
|
| Back to top |
|
|
yathern
Fusion Laser
Joined: 20 Aug 2006
Posts: 350
Location: Here, there.... Everywhere.
|
| Posted: 7/18/08, 8:47 PM Post subject: |
|
|
| COD4 is really fun- (off-topic...) E3 said that their making COD5 for Wii?!?! |
|
| Back to top |
|
|
Druzzi
Modified 10mW Greenie
Joined: 28 Jun 2008
Posts: 14
|
| Posted: 9/13/08, 5:01 PM Post subject: |
|
|
I have a NVG's, and I could see IR from a NewWish laser and from a friends IR laser (not sure of specs)
OFF TOPIC: CoD4 is awesome! |
|
| Back to top |
|
|
Sefrez
Nexus Laser
Joined: 22 Aug 2008
Posts: 111
|
| Posted: 9/13/08, 5:59 PM Post subject: |
|
|
Thermal or night vision?? Thermal is sooooo freakin' awesome and soooooooooooooo freaken' high dollars.
I have night vision with an IR light. it's not 1064nm. Because I can see it real dark red on the diode. (LED) Not where it's shining though. It might be 808nm. |
|
| Back to top |
|
|
Jehu
55mW Advanced Wicked Laser
Joined: 22 Aug 2007
Posts: 72
Picture(s): 4
Location: Austraila
|
| Posted: 9/16/08, 9:01 AM Post subject: |
|
|
you could make your own pesudo nightvision goggles out of a cheap CCD camera and LCD screen. Most web cams and cheap security cams pick up IR light and have AV out RCA plugs.
My litttle Microsoft web cam picks up IR from even a remote control, the dot looks white witha hint of blue to it. |
|
| Back to top |
|
|
breiko
4.99mW Green Laser Toy
Joined: 02 Oct 2008
Posts: 4
|
| Posted: 10/02/08, 9:20 AM Post subject: |
|
|
what laser wavelengths see the night vision like a COD4? 780nm, 808nm, 980nm
is isible for human eye the laser of 780nm? |
|
| Back to top |
|
|
SteelTigers
Nexus Laser
Joined: 30 Mar 2007
Posts: 101
Picture(s): 39
Movie(s): 2
Location: USA
|
| Posted: 10/02/08, 10:29 AM Post subject: |
|
|
| breiko wrote: |
what laser wavelengths see the night vision like a COD4? 780nm, 808nm, 980nm
is isible for human eye the laser of 780nm? |
The U.S. Army uses 820-850nm IR on the AN/PEQ-2 weapon mounted IR illuminator. It has two modes; adjustable flood/spot lamp for night time illumination and a 50mW IR laser for target acquisition. You cannot see the lamp or laser unless you are using nightvision.
_________________
Spyder II GX, BX
Spyder 200
Evo 125
Fusion 125
Fusion Signature 9/10
Fusion 115
Fusion 105
2 x Pulsar 100
Nexus 90
Phoenix 75
Extreme 60
Advanced 35
Images |
|
| Back to top |
|
|
Bluefan
Fusion Laser
Joined: 20 Apr 2008
Posts: 299
Movie(s): 1
|
| Posted: 10/02/08, 12:09 PM Post subject: |
|
|
| Many night-vision systems, including those used by "the army" , use photomultiplier tubes to amplify the remaining light. |
|
| Back to top |
|
|
breiko
4.99mW Green Laser Toy
Joined: 02 Oct 2008
Posts: 4
|
| Posted: 10/02/08, 5:12 PM Post subject: |
|
|
| can see the laser 980 nm with a ordinary night vision like bushnell, yukon, etc???????? |
|
| Back to top |
|
|
|
|
